Total Depth Tools offers an extensive line of Horizontal Directional Drilling (HDD) Drill Pipe in various sizes ranging from 3-1/2" to 8-3/4" Outside Diameter. We also offer the industry standard "Slick Stick" in 20’ and 31’ lengths.
Horizontal Directional Drilling (HDD) is a trenchless method of installing infrastructure such as telecommunications and power cable conduits into areas that are undesirable for environmental and/or constructability reasons, ie. Installation of pipelines beneath railroads, highways, rivers, and other environmentally sensitive areas. The HDD technique is also used for installing water lines, gas lines, sewer lines, oil lines, product pipelines, and environmental remediation casings.
During the HDD process, a pilot hole is first drilled along a predetermined path. The pilot hole is then enlarged in single or multiple steps (reaming passes) to accommodate the pullback of the carrier pipe into the enlarged hole.
The HDD process helps to alleviate unneeded environmental impact by preventing traditional trenching and excavation practices.